Finding the Fourth Proportional to 163,619.70, 245,429.55 and 84,887.70
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Solution
The fourth proportional to 163,619.70, 245,429.55 and 84,887.70 is: 127,331.55
Step by Step Solution
- Step 1: Write the proportion equation
163,619.70 : 245,429.55 = 84,887.70 : x - Step 2: Convert to fraction form
163,619.70/245,429.55 = 84,887.70/x - Step 3: Cross multiply
163,619.70x = 245,429.55 × 84,887.70 - Step 4: Simplify right side
163,619.70x = 20,833,950,011.54 - Step 5: Solve for x
x = 20,833,950,011.54/163,619.70 - Step 6: Final answer
x = 127,331.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.